在视窗式应用程序中菜单的使用是非常普遍的，Javax.swing提供的菜单功能非常强大。建立菜单要使用下面几个类：菜单条JMenuBar，菜单JMenu和菜单项-Windows applications in the use of the menu is very common, Javax.swing provided very powerful menu. The establishment of the menu to use the following categories: menu